Abstract
The probe-feed cylindrical dielectric resonator antennas (DRA) based on
a new magnetodielectric composites Cr0.75Fe1.25O3
(CRFO)/Fe0.5Cu0.75Ti0.75O3 (FCTO) are investigated. The experimental and
theoretical characteristics of the antenna like return loss, bandwidth,
input impedance, and radiation patterns are in good agreement. Numerical
validation is done, tacking into account the air gaps between the
dielectric resonator and the metallic conductors. Frequency response
bandwidth in the range of 6.6-11.8% was obtained,for frequency
operation around 4 GHz. The CRFO-FCTO present a dielectric constant in
the range of 8-13 with loss around 10(-3). To summarize, the performance
of a cylindrical DRA based in a new matrix CRFO/FCTO was examined. These
measurements confirm the potential use of such materials for small DRA.
(c) 2006 Wiley Periodicals, Inc.
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